Reversing-gear mechanism.



. 772,320; PATEN'IED 001'. 11, 1904.

' 4 w. J. WRIGHT.

REVERSING GEAR MECHANISM.

APPLICATION FILED FEB-.19, 1904.

2 sums-sum 1.

N0 MODEL.

INVENTOR William 'Jlfi' j'lll.v

1 hrronuers UNITED STATEs Patented October 11, 1904.

PATENT OEEIcE.

WVILLIAM J. WRIGHT, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE WRIGHTREVERSE COMPANY, A CORPORATION OF VEST VIRGINIA.

REVERSlNG-GEAR MECHANISM.

SPECIFICATION forming part of Letters Patent No. 772,320, dated October11, 1904:.

Original application filed July 9, 1903 Serial No. 164,821. Divided andthis application filed February 19, 1904. Serial No. 194,369.

(No model.)

T0 at whom, it may concern.-

Be it known that I, WILLIAM J AMES WRIGHT, residing at Pittsburg, in thecounty of Allegheny and State of Pennsylvania, have invented certain newand useful Improvements in Reversing-Gear Mechanisms, of which thefollowing is a specification.

This invention relates to certain new and useful improvements inreversing-gear mechanisms, more especially adapted for use upon thedrive-shaft of explosive and other engines for changing the direction ofmovement of the belt-driving gear actuated by the said drive-shaft, andthis application is a division of my pendi'ng application, filed July 9,1903, Serial No. 164,821, for reversing-clutch mechanism.

The invention disclosed in this present application comprises generallya shaft, a plurality of pulleys loosely mounted thercon,each of whichhas a gear-rim and a clutch-flange, an idler-gearwhich connects with thegear-rims of the said pulleys, and clutch-bands carried by the shaft forengaging the clutch-flanges of the said pulleys at predetermined times.

My invention also consists in certain features of construction andcombination of parts, which will be hereinafter explained, andspecifically pointed out in the appended claims,

and illustrated in the accompanying drawings, in which Figure 1 is avertical longitudinal section of my invention. Fig. 2 is a cross-sectiontaken on the line 2 2 of Fig. 1. Fig. 3 is a similar view taken on theline 3 3 of Fig. 1. Fig. 4c is a detail perspective view of theclutch-band-carrying hub, and Fig. 5 is a detail view hereinafterspecifically referred to.

In the drawings, in which like numerals and letters of referenceindicate like parts in all of the figures, A designates a shaft uponwhich is loosely mounted a main or drive pulley 3, having a gear-rim 3,a hub 3 and a web 3 (See Fig. 1.) The hub 3 has an extension 3 for apurpose presently to appear. The pulley 3 is loosely mounted upon theshaft A and is prevented from endwise movement by a collar 9 and a hub5, hereinafter again referred to. On the inner face of the web 3 is aclutch flange or rim 3 for a purpose presently to appear. 4: designatesan opposing clutch-pulley, also loosely mounted upon the shaft A, havinga gear-rim 4*, a hub 4", and

web 4, upon the inner side of which is a clutch flange or rim 4, asshown. The gear-rims 3 4c are cooperatively joined by an idler-gear D,mounted in a bearing portion 1) of the bracket B, mounted on a suitablesupport E. On a second bearing 20f the bracket B is mounted the shaft A.Secured to rotate with the shaft A by a key 0 is a hub 5, havingenlarged bores 5 5 to loosely receive the extensions 3 4 of the hubs 34".

5 5 designate a pair of oppositely-disposed ears on the hub 5, to eachof which is pivoted a lever 6, having a short crank-arm 6 and a curvedarm 6 with a cam-face 6 for cooperating with the cam-face 8" of theclutch 8, as will be presently fully explained. Theclutch-flange-engaging band 7 is secured at one end 7 to the outer endof the arm 6 by a bolt or pin 6 (see Fig. 1,) and the said band 7 hasits opposite end terminating in the straight bolt 7 which passes throughan aperture 5 in the lugs 5 on the hub 5 and which is held in positionby the nuts 7 x 7 (Shown in detail in Fig. 5.) One of the bands 7cooperates with the clutch-flange 3, while the other band 7 cooperateswith the clutch-flange i as will be clearly understood by reference toFig. 1.

Keyed to the hub 5, butadapted for endwise movement, is a clutch member8, having a groove 8 to receive the bifurcated ends 1 of theclutch-lever L, which is mounted for horizontal movement upon theextension 6 of the bracket B. The clutch member 8 has a pair ofoppositely-disposed cam-faces 8 8, which when the clutch member is movedinto engagement with the lever 8 engage the camface 6 thereof to rockthe said lever on its fulcrum 10 (see dotted lines, Fig. 2) to cause thearm 6 to draw the clutch-band 7 into the clutch 8 has its cam-face 8 inengagement with the lever 6 to the right of Fig. l the clutch-band 7will tightly engage the clutch-flange 4 of the pulley 4:, causing it torotate in the same direction as the shaft A, which through the gear Dwill impart reverse movement to the pulley 3; but when the clutch-flange8 engages with the lever 6 to the left of Fig. l the other clutch-band 7will engage the flange 3 to impart motion to the pulley 3 in the samedirection as the shaft A.

From the foregoing description, taken in connection with theaccompanying drawings, it is thought the advantages and completeoperation of my reversing-gear mechanism will be readily apparent tothose skilled in the art to which it appertains.

Having thus described my invention, what I claim, and desire to secureby Letters Pat' cut, is

1. In a gear mechanism, a shaft, a plurality of pulleys loosely mountedthereon, said pulleys each having a gear-rim and a clutch-flange, anidler-gear connecting said gear-rims of said pulleys, a hub mounted uponsaid shaft between said pulleys, clutch bands mounted upon said hub,cam-levers carried by said hub and connected to said clutch-bands, meansfor operating said cam-levers, to cause said bands to engage saidflanges, for the purposes speci- A 2. In a gear mechanism, a shaft, aplurality of pulleys loosely mounted thereon, said pulleys eachincluding a gear-rim and a clutchflange. an idler-gear connecting saidgear-rims of said pulleys, a hub mounted upon said shaft to turntherewith and between said pulleys, clutch-bands mounted upon said hub,cam-1evers carried by said hub and connected to said clutch-bands, aclutch member mounted upon said hub, and having cam-faces forcooperating with the cam-faces of said cam-levers, and means for movingsaid clutch member into engagement with said levers.

3. In a reversing-gear mechanism of the character described, thecombination with a pair of pulleys loosely mounted upon the shaft,

. each of which has a gear-rim and a clutchflange, the said pulleysbeing arranged with their gear and clutch faces opposite each other, anidler-gear which connects with the gearrims of the two pulleys, a hubfixedly mounted on the shaft of the two pulleys, a clutchlever mountedupon each end of the said hub and a means mounted upon each end of thehub for actuating the said levers whereby to move them into engagementwith the hub substantially as shown and described.

IVILLIAM J. RIGHT. WVitnesses:

ROBERT N. SPEER, FRED G. DIETERIOH.

